Votes go to the highest bidder in Mexican elections

Mexicans will go to the polls on Sunday to elect a new president, local mayors, senators and members of Parliament. The presidential campaign has been running for three months and the fear of electoral fraud remains a constant worry. Although the electoral watchdog and thousands of observers will be present at the voting stations, it's very difficult to prevent irregularities in the polling process. The buying of votes, as well as the bribing of people with gifts, are old practices.